Controlling mechanism for machines acting on sheets.



'PATENTBD MAY 21 1907 v I P. L. GROSS.

M FOR MACHINES 'AGTING 0N SHEETS.

GONTROLLING MEOHANIS APPLIOATION FILED APR. 3, 1905-- 2 slums-gum 1.

PATENTED MAY 21,- 1907.

No. 854,078. I

.F. ,L. (moss.

CONTROLLING MECHANISM FOR MACHINES AGTING 0N SHEETS.'

APPLICATION IILED APR. 3, 1905.

2 sums-sum 2.

UNITED STATES PATENT OFFICE.

FRANK L. OROss, OF MYSTIC, CONNECTICUT, ASSIGNOR O .CRoss- PAPER FEEDERCOMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

CONTROLLING MECHANISM FOR MACHINES ACTING 9N SHEETS.

Patented May 21, 1907.

Application filed A ri 3,1905. Serial to. 253.647.

To all whom it may concern.-

' Be it known thatI, FRANK Mystic, in the county of New London and Stateof Connecticut, have invented certain new and useful Improvements inControlling Mechanism for Machines Acting on Sheets, of

i which sheets are automatically to by sheet feeding mechanism-.

In practicing my invention I control the mechanism which throws themachine out of Operation through a finger arranged to one side and outof the path of the sheet. The surface of thesheet is brought againstthis finger and moves it out of normal position in case the sheet isproperlyfed into position.

SO long as the finger is thus moved through the movement of the sheetagainst it, the

throw-out mechanism remains inactive. Should the sheet fail to come intoproper position to be carried against the finger how ever, the fingerwould remain in normal osi-" tion and in such case the throw-out mecanisin ivill'be rendered active and the machine be thrown out ofoperation.

In adapting my invention for use in con nection with printing presses Iarrange the finger above the path of the sheets and with the part whichis acted upon by the sheets just back of the front edge of the sheetwhen the sheet is against the front gages of the rinting press. When thesheet is brought mto pro er position with the front edge against t .efront gages, it is lifted by'a reciprocating plate arranged below thepath of sheets and its u per surface is carried against thefi'nger, tereby moving the'rfinger out of normal position. If the front edgeof;the sheet is not in pro or positionagainst the front 'gageswhen t ereciprocating plate rises, the finger remains in normal position thuscausing the throw-out mechanism to bc- L. CRoss, of"

come active; With this construction and arrangement, the finger may. beoperated in an efficient and reliable manner even when the machine isoperating upon thin paper or crumpled. The finger, or fingers, may alsobe ad usted' close to the line of the front gages paper the edge ofwhich 15 easily bent or Without danger of being brought too near thesurface of the impression cylinder. With this construction andarrangement also there:

is no danger of failure to o e'rate by reason of failure of the frontedge 0 the sheet to properly act u on and operate the finger as is thecase w ere fingers or similar devices 'for controlling the throw-outmechanism are arranged across the path of the sheet and are" operated bythe onward movementof .the sheet." J

.The various features of the invention will be understood from thefollowing detailed description of 'the mechanism shown in the accoinpanying drawings, which cmb odies the various features of the nvention inthe forms in which I prefer to'use-them. In these drawings Figure 1 is aplan viewshowing one side of the feed board of a press provided with thecontrollingmechanism for throwing the machine. out'of operation. Fig.

2 isa sectional elevation on;lin e2-2 Fig.

Fig. 3 is a detail elevation showing the throw-out mechanism and a partof the devices forcontrollingitsoperation: Figs. 4, 5 and 6 are detailsof parts shown in Figs. 1 and sively presented being moved orfd' intoposition against the front Pa esA of the' press. The sheets may be e byany suitable mechanism or by hand and when 'ai to-g 'matically fed. thefeeding me'ch'anis'mfs'h ould 1 ,2, which will be more fully describedhere; h

after. Fig. 7 is a detail front elevation showbe driven by suitableconnectionsL'y'vjtl }?the.

mechanism" for oper iting. the press that both the feeding linechanismand. I .may be -throwm a ou'sly in case a-sheet is not properlypresented-l at the front gages. a

In the construct'onshown intlie f dllfi'vi'lings the sheet is supposedvto'be fedby aiitoinatid,

.supported during its idle reciprocation by other end of this bar issecured in an arm simiguard C in-engagement with the. pin C as 7 heldout of engagement; with the toothed segment C If' the movement of theguardv operation. Thus the bar C ,and connected be thrown into operationby the upward with any suitable operating means. The

' from the pawl. -The guard 0" projects up- .and parts connectedtherewith are-free to osmechanism over the support 13 which is arrangedon the front end of the feed board B of the press. j

The mechanism shown for throwing the machine out of operation comprisesan arm C secured to a sleeve C which is mounted to turn upon a rod Cextending transversely above the sheet support B. The arm C-is connectedby means of a link C with any suitable form of'stop mechanism which willmovement of the link C. The stop motion may be of any suitable and wellknown construction, such for instance as an electric switch or amechanism which is either released or positively operated by the movement of the link G3.

The means for operating the arm 0 to throw the machine out of operationconsists of a pawl 0 arranged to cooperate with a toothed segment Cformed onthe arm C. i The pawl C is carried on a pawl carrying arm Cwhich is loosely mounted on the red- C and is constantly oscillatedthrough its connection pawl Oduring the normal running of the machinereciprocates idly out of engagement with the toothed segment C The pawl.is

means of a guard Cf provided with a notch- C which is'engaged bya pin Cprojecting ward from a collar C whichis loosely mounted on the rod 0The-collar C is provided with an arm C: in the outer end of which issecured one endofia transverse bar C. The

lar to the arm C projecting from a collar similar to the collarCmountedon the opposite end of the rod 0 The weight of the arm. C and transversebar G acts to hold the the pawl reciprocates. So long as the guard'cillatev about the red C they will therefore move. m-unisonwith thereciprocating move, ments of thepawl C and thepawl will be and theparts" connected therewith is arrested however, when the pawl is in itsji'etracte'd ,position, thenas the pawl advances the pin C will ride offof the guard C so that the pawl will drop down into engagement with thesegment 0 When this occurs continued movement of the pawl will rock thearm C thus causingthe machine to be thrown out of.

guard .0 form a reciprocating controlling device by the arrest of whichthe throw-out mechanism may be rendered active. In order that themovement of this controlling device maybe arrestedin case the sheet isnot properly fed to the front guides A, the bar C is provided with alongitudinal notch or y recess C adapted to be engaged by a stop D. Thestop D is carried by a lever D which is pivoted to an arm D adjustablysecured upon the sleeve C; The stop Dis moved out of active position incase a sheet is properly positioned againstthe frontgages A through afinger I) secured to the lever D and having its frontend D, arrangedabove the path of the sheets and directly back of the line of the frontgages. The imger D is operated to render the stop inactive by means of aplate D arranged below the path of the sheets and provided withanopen-ing I)" at its front end underlying the end D of thefinger. Thepassage of the front edge of the-sheet between the plate D and fingersD? is insured 'by a guard plate I) pivoted to from the finger D? by ascrew threaded stud D and-nut D. By turning the nut D the position ofthe guard D with relation to the finger D" may be properly adjusted. Theplate'D is operated at proper intervals. to move the plate toward andaway from the finger D by means of a rock shaft D to ,whlch the rearendof the plate D is secured. The rock shaft D extends transversely ofthe 'machine and may be rocked at proper intervals by connection withany suitable moving part of the machine not shown.

As asheetis being fed to the front gages, the parts occupy thepositio':w indicated in Fig. 2, the lever D being held in. positionagainst the stop screw D by the weight of theffinger D and the guard D.After the guard C are free to oscillate about the rod 0 as the pawl Cfmoves forward.

- The parts are so timed and operated that of thesheet engages the frontgages in case pawl C moves'forward immediately following the raising ofthe bar D If for any reason a sheet is not fed in proper time to be thesheet is improperly fed so that its front front ga es, t len when t eba' D is raised it merely lifts the guard D without effectinganymovement of the finger D and arrests the movement of this bar and ofthe connected guard C The pawl C is therefore allowed to engage thetoothed segrendered active and the press and feeding mechanism stopped..In order thatthemigerD may be adj usteckto bring it into proper the barC so that the bar and connectedthe sheets are-being properly fed, andthe seized by the grippers of the press, or in caseedge is not. roperlyre istered against the the lower end of the arm D and supported sheethas beenpositioned against the front gages, the rock shaft D is operatedto raise thebanD is raised just after the front edge 3 its 7 In.thiscase' the stop D remains in the path of the bar C,

ment C andthe throw-outmechanism thus position between the plates andfingers I .arran'ge these fingers and cooperating plates relation to thefront gages, itis secured to the the-front gages.

lever D by means of screws dpassing throiwh slots 'd( formed in thefinger. The stud l) also extends through a slot (1 in the finger D inorder to accommodate the adjustment of the finger. The position of thefinger with relation to the topcf'the sheet may be adjusted by turningthe stopscrew D.

In applying the controlling mechanism to a printing press I provide twoor more fingers D and cooperatin latesl Dfleither of which will act tocentre t e operation of the throw-out mechanismand to cause theoperation of such mechanism in case the front edgeof the sheet is not.brought into proper adjacent to the front gages and I adjust themtransversely of the machine as occasion requires, to correspond to theadjustment of The'transverse adjustment of the fingers and connectedstops may be effected by unclamping the arms 1) and slidingthem alongthe sleeve C, irig adjustment of the plates D ma be ef-' fected bysliding them along a rock s aft D Since the bar C extends transverselyacross the machine, the stops D will be inproper relation to cooperate,with-the barin any adjustment of the fingers D transversely ofthemachine. w

What I claim anil d'sire to secure by Let-.

ters Patent is 1. Controlling mechanism for machines acting on sheets,having in combination front gages against-which the sheet is registered,a movable'finger arranged above the path of the sheets back of the lineof the front gages, means for lifting the sheet against the finger, andthrow-out mechanifsm controlled through the movement of said in er.

5; Controlling mechanism for machines acting on sheets having incombination,

. against the finger, and throw-out mechanthrow-out mechanism, a fingerarranged above the path of the sheets, means for 11fting the sheetagainst the finger, and devices ism controlled through said finger.

4. Controlling mechanism for. machines acting on sheets, having incombination -throw-out mechanism, a moving controllingdevice the arrestof which. renders said mechanism active, a stop for arresting the con- Acorrespondacting on sheets, having trollingdevice, a finger connected tooperate said stop and arranged out of the path of the sheet, andmeans-for"pressing "th e sheet;

against said fingen to render the stop in active. t

I 5..Controlling mechanism for machinesacting on sheets, having .incombination throw-out mechanism,.a moving controlling device the arrestofv which 'renders said, me'ch anism active, astop for arrestingthe con:

trolling device, afinger connected; to 0 ering the sheet againstsaidfinger i 6. Controlling mechamsm for machines acting on sheets having incombination throw-oat mechanism, a finger arranged 1 above the path of.the sheets, intermediate ate said stop and arranged above the pat ofthesheet, and a cooperating plate forearrydevicesfor.eontrollingtheoperation of the.

throw-out'mechanism, aguard for directing the edge of the sheet underthe finger, and a i cooperating plate for lifting the sheet against Ithe finger.

.7. Controlling mechanism for machines acting on sheets, having incombination frontgages against which thesheetis registered, a movablefinger arranged above the ath ofthe sheets and back of the lineof theront gages, a cooperating late below the pathof thesheets, meansormoving'the plate toward theflfinger, and throw-out mech anism controlledthrough said finger. j

8. Controlling mechanism' for machines -'in combination a fingerarranged out of the ath of the sheets, a guard movable indepen' ently ofthe finger for. directing the edge of the sheet past the finger, acooperating plate on the opposite side of the path of the sheets,- meansfor forc-.

ing the late toward the finger, and throw.- out mec anism controlledthrough. said finer. i 1

9. Controlling acting on sheets, having in combination front gagesagainst whichthe sheet is registered, a finger having its frontend'arran'ged back of mechanism for machines the line of thefront gagesand above the ath of the sheet, a plate extending from the out of thefeed hoard beneath-the finger, means for raising and lowering saidplate, and throw-out mechanism controlled .through said fingen- 10.Controlling 'mechanism for machines acting on sheets, having incombination front gages against which the sheets are registered,

' a finger having its front end arranged, back of the line of the frontga es and above the path of the sheets, a guar extendinglb elow thefront end of the finger, a. plate projecting from the front end of thefeed board .below the finger, means for raisin and loweririg the plate,and throw-out mechanism controlledthrough said finger.

11. Controlling mechanism for machines acting on sheets, having incombination a pivoted finger D having its front end, ar-

rangedabove the path of the sheets, a stop I) connected with saidfinger, a plate extendingbelow said finger, means for raising. and'lowering said plate, a moving device the movement of which is arrestedby the stop when In normal position, and throw-out mechanism renderedactivebv the arrest of .said moving device.

ger, means for raising and lowering the plate,

and throw-out mechanism controlled through said finger.

transversely adjustable support for said fin.

ger, a stop connected with said finger, a,

transverse bar adapted to be engaged by said stop, meansfor-reciprocating said bar, throw-out mechanism rendered active by, the

arrest of said bar, a transversely adjustable plate arranged to pressthe sheet against said finger, and meansfor moving said plate toward andaway from said finger.

In testimony whereof I have affixed my signature,in presence of twoWitnesses.

FRANK L. CROSS. Witnesses IRA L. FISH, KATHARINE A. Drew. v

